Conquer the Sierra Buttes.

Conquer the Sierra Buttes at the Lost Sierra Endurance Race on July 26, 2025, in Downieville, California. Participants can choose from 25K, 50K, and 100K courses, each offering a challenging and scenic trail experience through the Sierra Nevada mountains. The 100K course features an out-and-back route with multiple aid stations, traversing iconic trails like the Pacific Crest Trail and Lakes Basin Trails.

The 50K and 25K courses provide shorter but equally beautiful routes through canyons, ridges, and river valleys. The event includes pre- and post-race activities, with medals and gear for finishers, and supports local nonprofits through The Unity Initiative. Visit the organization's website for the most recent information.